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13.A new study suggests that the more teenagers watch television,the more likely they are to develop  depression as young adults.
The researchers used a national long-term survey of healthy young teenagers of about 13-16to find out the relationship between media use and depression.They based their findings on more than4000young teenagers who were not depressed when the survey began in 1995.
As part of the survey,the young people were asked how many hours of television or videos they watched daily.They were also asked how often they played computer games and listened to the radio.
Here was the result.The young people spent five and a half hours a day using media and more than 2hours of that was spent watching TV.
Seven years later,in 2001,more than 7% of the young people had signs of depression.The average age at that time was 21.Brian Primack at the University of Pittsburgh medical school was the lead authorof the new study.He says every extra hour of television meant an 8% increase in the chances of developingsigns of depression.
The researchers say they did not find any such relationship with the use of othermedia such as movies,video games or radio.But the study did find that young men were more likely than young women to developdepression given the same amount of media use.
Doctor Primack says the study did not find out if watching TV causes depression directly.But one possibility,he says,is that it may take time away from activities that could help prevent depression,like sports and social activities.It might also prevent a person from sleeping well,he says,and that could have an influence.
The study was just published in the Archives of General Psychiatry.
In December,the journal Social Indicators Research published a study of activities that help lead to happylives.Researchers from the University of Maryland found that people who describe themselves as happy spend less time watching television than unhappy people.The study found that happy people are more likely to be socially active,to read,attend social services and to vote.

56.Who was in charge of the new study of depression?C
A.Maryland    
B.Pittsburgh   
C.Brian Primack   
D.General Psychiatry
57.What does the word"depression"mean?It's a kind ofD.
A.vote         
B.study   
C.sports
D.disease
58.In 2001,more thanC young people in the research had got the signs of depression.
A.7            
B.21         
C.280            
D.4000
59.What does the writer want to tell us?B
A.Thescientific research can prevent people from having depression.
B.People are sure to benefit from watching TV less while taking activities more.
C.Giving up all the uses of media and this will make you become a healthy person.
D.The researchers will stop the study as it's too difficult to understand the relationship between media use and depression.

分析 本文主要向我们讲述了青少年因为看太多电视和传媒而发生情绪低落的现象.调查发现青少年每天花在电视上的时间很多,这对他们的健康有不利的影响,为了防止这种不良情绪,青少年应该多参加户外活动.

解答 56 C 细节理解题:根据第五段Brian Primack at the University of Pittsburgh medical school was the lead authorof the new study匹兹堡医学院的Brian Primack是这项新研究的主要作者.故选C.
57 D 词义理解题:根据第五段Brian Primack at the University of Pittsburgh medical school was the lead authorof the new study匹兹堡医学院的Brian Primack是这项新研究的主要作者;第七段It might also prevent a person from sleeping well,he says,and that could have an influence他说,这也可能阻止一个人睡得好,这可能会产生影响.故推测它可能是一种疾病,故选D.
58 C 推理计算题:根据第二段They based their findings on more than4000young teenagers他们基于4000多名青少年的调查结果;第五段in 2001,more than 7% of the young people had signs of depression2001年,超过7%的年轻人有抑郁症的迹象.即4000×7%=280,故选C.
59 B 推测理解题:根据第五段every extra hour of television meant an 8% increase in the chances of developingsigns of depression.每增加一个小时的电视意味着增加8%的发展抑郁症的机会;第七段But one possibility,he says,is that it may take time away from activities that could help prevent depression,like sports and social activities但是有一种可能性,他说,它可能需要花时间从活动,如体育和社会活动中阻止情绪低落.意思是多从事户外活动,少看电视,故选B.

点评 对考生提出以下几方面要求:1.不但要求掌握所读材料的主旨大意、中心思想,而且要求掌握文章中的详细事实与细节. 2.不但要求对于具体事实情节的理解,而且要求对其抽象含义的理解,既要理解字面意思,又要理解其深层含义,包括作者的态度、观点、意图等. 3.既要求理解文章中某句、某段的含义及全文的逻辑关系,又要求根据其含义及逻辑关系进行判断和推理.

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